Doug McGarrett wrote:
On Thursday 14 February 2008 12:50, Randall R Schulz wrote:
On Thursday 14 February 2008 08:52, Per Jessen wrote:
Carlos E. R. wrote:
...
I'm pretty certain it won't be able to measure any spikes. As for the type of load, it's almost 99% resistive. I.e. the load doesn't vary with the phase of the AC. "Resistive" means the current and the voltage are in phase with each other.
But I don't see how a transformer primary, which is an inductor, can be anything _but_ reactive.
...
/Per Jessen, Zürich Randall Schulz
A transformer literally does what its name implies--it transforms a given voltage and current into another voltage and current, with virtually no loss. Therefore, if the output load on a transformer is resistive, then the input to it is resistive also. The relationship between input voltage and current to output voltage and current is linear; for example, if the input is 100 volts at 1 amp, the output could be 10 volts at 10 amps. The transformer is not absolutely lossless, but it is extremely efficient. In most cases you can very comfortably put your fingers on a transformer core and feel only a little warmth.
Note that's the iron CORE, conveying the magnetic field, **NOT** the WINDINGS which are conveying the current! -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org